Related Questions

Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
A 0.03
B 3
C 35
D 70
Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?
A Elaiden test
B Reichart-Meissl value test
C Henter value test
D Iodine value test
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
A Poor oxidation stability and high gum forming tendency
B Greater tendency of decomposition at elevated temperature
C Hydrolysis tendency in presence of water
D All of the above
কক্ষ তাপমাত্রায় 75 g ভরের NaCl এর একটি সম্পৃক্ত দ্রবণে 20 g NaCl দ্রবীভভূত আছে। এ তাপমাত্রায় NaCl এর দ্রাব্যতা কত?
A 36.36
B 26.26
C 40.33
D 39.22
A stone ball is dropped into a barrel of water and sinks to the bottom. The ball is completely covered by water .By how much does the water rise in the barrel ?
A 0.42 cm
B 4.2 cm
C 42cm
D Try your self
Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.
A Drying
B Semi-drying
C Non-drying
D None of these
The Lions Club has a target of raising at least Tk 500 thousand. It has already raised Tk 100 thousand. The club is sponsoring a 'Pitha' festival and Tk 5000 per ticket. Which equation represents the number of tickets (t) that the club must sell to meet its target?
A 5t=500
B 5t=100
C 5t+100=500
D (5+100)t=500
Unsaturated oils compared to saturated oils have
A Lower melting point & higher reactivity to oxygen
B Higher melting point & higher reactivity to oxygen
C Lower melting point & lower reactivity to oxygen
D Higher melting point & lower reactivity to oxygen
Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils
A Cause cholesterol build up and blood clotting
B Are prone to rancid oxidation
C Always contain some amount of nickel (as their complete removal is very difficult)
D Have affinity to retain harmful sulphur compounds
খুলনা এলাকায় কৃষিজমির পানিতে 585 ppm NaCl আছে । ঐ পানিতে NaCl এর মোলারিটি কত
A 0.05 M
B 0.04 M
C 0.01 M
D 0.03 M

Next steps